:root{--bg:#f5f3ec;--card:#fffefa;--ink:#143b35;--muted:#586e66;--line:#d8dfd4;--accent:#d6ec7a;--soft:#e8ede4;--bad:#a33227;--good:#226b46;color-scheme:light}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI",sans-serif}body.dark{--bg:#112521;--card:#19342e;--ink:#eff4e8;--muted:#adc4b7;--line:#365348;--soft:#244139;--bad:#ffb0a1;--good:#a3e2b3;color-scheme:dark}header{max-width:1120px;margin:auto;padding:24px 28px;display:flex;align-items:center;gap:18px;border-bottom:1px solid var(--line)}a{color:inherit}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer;border:1px solid var(--line);border-radius:12px;padding:13px 18px;background:var(--card);color:var(--ink);min-height:46px}button:hover{border-color:var(--ink)}button:disabled{cursor:default;opacity:.75}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #d18a24;outline-offset:4px}.brand{font-weight:850;letter-spacing:2px;text-decoration:none;display:flex;align-items:center;gap:12px}.mark{background:var(--ink);color:var(--bg);padding:7px 11px;border-radius:50%;font-size:23px}.badge{font-size:10px;letter-spacing:1.6px;color:var(--muted);margin-left:auto}header button{padding:5px 14px;font-size:24px}main{max-width:1064px;margin:0 auto;padding:42px 24px 130px}h1{font-size:clamp(34px,6vw,62px);line-height:1.05;letter-spacing:-2px;margin:15px 0 24px;font-weight:750}h2{font-size:25px;letter-spacing:-.6px}h3{margin:8px 0;font-size:21px}p{line-height:1.65}small,.muted{color:var(--muted)}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;text-transform:uppercase}.hero{display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:center;margin-bottom:45px}.hero p{max-width:420px;color:var(--muted)}.primary{background:var(--ink);color:var(--bg);border-color:var(--ink);font-weight:650}.lime{background:var(--accent);color:#18362c;border:0}.actions{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}.radio{background:#173e36;color:#eff4e8;border-radius:28px;padding:30px;transform:rotate(2deg);box-shadow:8px 12px 0 #cad3c3}.radio .screen{margin:20px 0;background:#d6ec7a;color:#173e36;padding:24px;border-radius:9px;font-family:monospace}.freq{font-size:clamp(40px,6vw,65px);letter-spacing:-4px}.radio-bottom{display:flex;align-items:center;justify-content:space-between}.dial{height:62px;width:62px;border:7px solid #6c8a73;border-radius:50%;background:#102e2b}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{border:1px solid var(--line);border-radius:19px;background:var(--card);padding:24px}.card p{color:var(--muted);font-size:14px}.card-link{display:block;text-decoration:none}.card-link:hover{border-color:var(--ink);transform:translateY(-2px)}.number{font-family:monospace;font-size:12px;color:var(--muted)}.tag{display:inline-block;border:1px solid var(--line);border-radius:99px;padding:5px 10px;font-size:11px}.section-head{display:flex;align-items:center;justify-content:space-between;margin:28px 0 16px}.section-head h2{margin:0}.strip{display:flex;justify-content:space-between;gap:18px;border-top:1px solid var(--line);padding-top:22px;margin-top:30px;font-size:12px;color:var(--muted)}nav{position:fixed;bottom:18px;left:50%;transform:translateX(-50%);display:flex;background:var(--ink);color:var(--bg);padding:7px;border-radius:20px;gap:4px;box-shadow:0 8px 35px #0003;z-index:5}nav a{min-width:92px;padding:9px 14px;text-decoration:none;display:flex;flex-direction:column;align-items:center;font-size:21px;border-radius:13px}nav span{font-size:11px;margin-top:3px}nav a.active{background:var(--accent);color:#163a31}.filters{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0}input,select{background:var(--card);color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:13px;max-width:100%}input[type=search]{flex:1;min-width:180px}.reference{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.code{font-size:31px;font-weight:750;letter-spacing:1px}.reference .card{position:relative}.listen{float:right}.quiz{max-width:670px;margin:0 auto}.question{text-align:center;padding:35px 20px}.question h2{font-size:33px;line-height:1.25}.answers{display:grid;gap:12px}.answers button{text-align:left;padding:19px}.answers .right{background:#d9ebcd;color:#164329;border:2px solid #357640}.answers .wrong{background:#f7d9d1;color:#812d22;border:2px solid #ad4837}.feedback{padding:20px 0;line-height:1.6;min-height:30px}.bar{height:7px;border-radius:8px;background:var(--line);overflow:hidden}.bar i{display:block;height:100%;background:#779c36}.stats .value{font-size:44px;display:block}.empty{padding:38px 0}.full{width:100%}label{display:block;font-weight:600;margin:18px 0 8px}.hint{font-size:13px;color:var(--muted)}#notice{position:fixed;top:15px;left:50%;transform:translateX(-50%);max-width:90vw;background:var(--ink);color:var(--bg);border-radius:12px;padding:12px 20px;z-index:10;display:none}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}footer{margin-top:32px;color:var(--muted);font-size:12px}progress{width:100%;accent-color:#7b9739}dialog{background:var(--card);color:var(--ink);border:1px solid var(--line);border-radius:18px;max-width:420px;padding:28px}dialog::backdrop{background:#0008}@media(max-width:650px){header{padding:18px}.brand{font-size:13px;letter-spacing:1px}.badge{display:none}header button{margin-left:auto}main{padding:28px 18px 120px}.hero{grid-template-columns:1fr;gap:20px}.radio{transform:none;padding:22px}.hero h1{max-width:350px}.grid{grid-template-columns:1fr}.reference{grid-template-columns:1fr}.stats{grid-template-columns:repeat(3,1fr);gap:8px}.stats .card{padding:15px 10px}.stats .value{font-size:28px}.stats p{font-size:11px}nav{bottom:10px;width:calc(100% - 24px);justify-content:space-around}nav a{min-width:0;flex:1}.strip{flex-direction:column;gap:8px}.section-head{align-items:start;gap:15px}.question h2{font-size:27px}}


main{padding-bottom:24px}#site-footer{max-width:1064px;margin:0 auto;padding:0 24px 130px}#site-footer footer{margin-top:16px}.footer-links{display:flex;flex-wrap:wrap;gap:10px 22px}@media(max-width:650px){#site-footer{padding:0 18px 120px}}